Ectoderm
n. 外胚层, 外层\\n[医] 外胚层
🗣️ 情景例句
Like father, like son.
有其父必有其子。
Mary gave birth to a baby last week.
玛丽上星期做妈妈了。
Certainly! I'm coming now, Dad!
当然可以，爸爸，我马上就来。